PPRuNe Forums - View Single Post - Air Asia Indonesia Lost Contact from Surabaya to Singapore
Old 4th Feb 2015, 23:16
  #3047 (permalink)  
Capn Bloggs
 
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Originally Posted by .Scott
Correct me if I'm wrong, but there are only two ways that the Airbus could have climbed as rapidly as it did: with severe and persistent up elevator or with CG way too aft
Actually, the amount of stick you need to generate that rate of climb isn't a lot: as a rule of thumb for my TCAS responses (passed on down by an old hand) I use: 1° of pitch change results in about your Mach number in Rate of Climb: If you're doing .8 and you pull 1° of pitch, your ROC will be around 800ft/min. I haven't actually used 10° on a TCAS RA , but lesser changes indicate those numbers are pretty close. It's not difficult (and certainly not severe) to pull 10°: there's your 8000ft/min climb rate... for a short time at least.
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